<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <input id='input' />
  <script>
    input.onblur = (event) => {
      console.log(event);
      input.remove();
    }
  </script>
</body>
</html>